Start-up of a methanol-to-olefin process

Details Start-up of a methanol-to-olefin process Start-up of a methanol-to-olefin process

2005-03-29

2005-03-29

Dang, Thuan D. (Department: 1764)

Chemistry of hydrocarbon compounds

Miscellaneous considerations

Reaction start-up procedure

C585S638000, C585S639000, C585S640000

Reexamination Certificate

active

06872867

ABSTRACT:
A catalytic conversion process using a fluidized conversion zone, which requires a minimum superficial gas velocity to function properly, and a motor-driven, capacity-limited product compressor zone is started up using a thermal compressor by establishing two start-up gas recirculation circuits, one using the product compression zone running at high pressure to recirculate about 40 to 60 vol-% of the effluent gas stream from the conversion zone and the other running at low pressure and carrying the remaining portion of the effluent gas stream from the fluidized conversion zone where the high pressure circuit supplies motive gas to the thermal compression zone and the low pressure circuit supplies suction gas to the thermal compressor and the resulting compressed discharge gas enables the catalytic process to start up without the use of a dedicated motor-driven start-up compressor.

REFERENCES:
patent: 4387263 (1983-06-01), Vogt et al.
patent: 4587373 (1986-05-01), Hsia
patent: 5095163 (1992-03-01), Barger
patent: 5126308 (1992-06-01), Barger et al.
patent: 5191141 (1993-03-01), Barger et al.
patent: 6166282 (2000-12-01), Miller
patent: 6403854 (2002-06-01), Miller et al.

Affiliated with

Also associated with

Rating

Start-up of a methanol-to-olefin process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Start-up of a methanol-to-olefin process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Start-up of a methanol-to-olefin process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3438298